PosAni

Automatically animates changes in widget positions.

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Installation

Pin the minor version.

poetry add kivy-garden-posani@~0.3
pip install "kivy-garden-posani>=0.3,<0.4"

Usage

from kivy_garden import posani

posani.activate(widget)

Install if you prefer not to manually activate each individual widget. All the widgets created after the installation will be automatically "activated".

posani.install()

To install on a specific type of widgets:

posani.install(target="WidgetClassName")

Q&A

Why is it implemented through a widget’s canvas rather than just updating the widget's position?

Some widgets, such as BoxLayout and GridLayout, constrain the positions of their children, so updating a widget's position isn't always possible.

Why doesn't it animate widget sizes?

It used to until version 0.1.x but this feature was dropped in version 0.2.0. The reason is that scaling a widget using kivy.graphics.Scale produces visually unappealing results.